Datasets:

cwinkler

/

patents_green_plastics

like 1

apparatus , and method , for controlling the flow of dilute solutions of polymers such as dilute aqueous solutions of partially hydrolyzed polyacrylamides without causing any significant degradation of the polymer comprising the solutions . in one embodiment , the apparatus comprises a plurality of fixed restrictions connected in series with nipples having a larger internal diameter than the fixed restrictions . in another embodiment , the apparatus comprises at least one fixed restriction in communication with a flow control valve such as a needle valve .

this invention pertains generally to the fields of molecular biology and medical diagnosis . more particularly this invention provides novel biomarkers for the detection of pancreatic cancer comprising at least one messenger rna and / or up - regulated peptide in pancreatic cancer . the present invention provides biomarkers capable of discriminating between non - neoplastic pancreatic tissues and ductal adenocarcinoma tissues and can be correlated with a probable diagnosis of pancreatic cancer as well as assessing the efficacy of ongoing therapies for this disease .

methods for the fabrication of negative coefficient thermal expansion engineered elements , and particularly , wherein such elements provide for fillers possessing a low or even potentially zero coefficient thermal expansion and which are employable as fillers for polymers possessing high coefficients of thermal expansion . further , disclosed are novel structures , which are obtained by the inventive methods .

a controlled release fertilizer including a fertilizer granule , having an outer surface , a coating of biopolymer composition on the outer surface of the fertilizer granule , wherein the biopolymer composition includes at least one biopolymer , and a process of making the controlled release fertilizer including the steps of screening fertilizer granules to a preselected granule size , heating a biopolymer to become substantially fluid , and applying the biopolymer onto the surface of the fertilizer granule to produce a coating on the granule of a predetermined amount .

a coated textile fabric is disclosed for manufacturing an air holding device for a vehicle restraint system , including a base woven , knitted or non - woven base textile fabric having a first surface and a second surface . the base textile fabric is completely or partially coated with an adhesive polyurethane to form a first coating layer , the first coating layer being coated with a second composite coating layer . the second composite coating layer is preferably a polyurethane , a polysiloxane , and an epoxy resin which acts as a filler and adhesion promoter . a third coating layer is formed of a polymeric polyurethane material coated on the second composite layer . a method of producing the coated textile fabric is also disclosed . a heat sealing die for forming sealing beads to seal such coated textile fabrics to form air holding devices is also disclosed .

the invention relates to a vehicle , notably a motor vehicle , chassis frame side rail made up of two section pieces of u - shaped cross section , welded together by longitudinal connecting tabs juxtaposed contiguously and more or less perpendicularly extending the ends of the branches of the u , in which each section piece has , between each of the tabs and the branches of the u that it extends , a joining area that forms two separate longitudinal plastic hinges that deform if the side rail is deformed by longitudinal compression so as to keep the welded joint between the tabs intact .

a process for polymerizing acrylic monomers is disclosed . the process involves providing a reactor which is generally in the shape of a screw type reactor having temperature control means thereon . the reactor is continually charged with a supply of acrylic monomers having a viscosity of 10 poises or less at ordinary temperature . the acrylic monomers are continually moved through the reactor by turning of the screw within the reactor in order to cause the acrylic monomers to continually contact renewed surfaces within the reactor . the temperature in the reactor is controlled within two or more zones within the reactor in order to increase the viscosity of the acrylic monomers in the reactor by rapid polymerization within an initial area and then allow polymerization to proceed to one or more additional areas in the reactor to a prescribed rate of conversion . polymerized product is continuously removed from the reactor .

a cavity illumination system according to the present disclosure may include one or more illumination elements composed of a transparent or semi - transparent , biocompatible sterilizable polymer and one or more illumination sources . the sterilizable polymer operates as a waveguide . an illumination element may incorporate micro structured optical components such as for example gratings , prisms and or diffusers to operate as precision optics for customized delivery of the light energy . the micro structured optical components may also be used to polarize and / or filter the light energy entering or exiting the illumination element .

a support for parts of the human body , for example a bicycle saddle , padded support elements , cushions , chairs , armchairs , armrests , supports for triathlon bike handlebars , the support including a support shell , a padding positioned on said shell and a coating which covers the padding . the padding includes at least one first gel portion in the vicinity of the coating and a second foam portion in the vicinity of the support shell , the first gel portion being in the form of a layer with a progression which reproduces substantially the form of the upper supporting surface of the support . in one version at least part of this support includes a polymer material derived from renewable and / or natural sources .

a carbon nanotube sheet of the present invention includes carbon nanotubes and a polymeric material , wherein the carbon nanotubes are present in an isolated state , the axis directions of the carbon nanotubes are aligned m a thickness direction of the carbon nanotube sheet , and the space between the carbon nanotubes is filled with the polymeric material .

enhanced hydrophobic membranes and methods of making such membranes are disclosed . the membranes are made of a polymer , such as polyvinylidene difluoride coated with a fluorochemical acrylate polymer to enhance hydrophobicity . membranes of the type described above are made without cross - linking , grafting or in situ polymerization .

a medical instrument and a manufacturing method thereof are provided . the medical instrument includes a biomedical metal layer and a polymer film . the polymer film is a biodegradable polymer material . the manufacturing method includes the following steps : providing the biomedical metal layer , immersing the biomedical metal layer in a polymer solution , performing a baking process on the biomedical metal layer coated with a polymer film , forming the biomedical metal layer coated with the polymer film , taking out the biomedical metal layer coated with the polymer film to fabricate the medical instrument . the biodegradable polymer film and the biomedical metal layer are combined into the medical instrument , so that a physician performs a surgery more easily . in addition , decomposition time of the polymer film can be preset , so as to achieve efficacy of blocking soft tissue cells having a higher growth rate .

the invention provides biologically active erythropoietin conjugate compositions wherein epo is covalently conjugated to a non - antigenic hydrophilic polymer covalently linked to an organic molecule that increases the circulating serum half - life of the composition . the invention thus relates to epo derivatives described by the formula epo - n where epo is erythropoietin or its pharmaceutical acceptable derivatives having biological properties of causing bone marrow cells to increase production of reticulocytes and red blood cells , x is peg or other water soluble polymers , y is an organic molecule that increases the circulating half - life of the construct more than the peg alone and n is an integer from 1 to 15 . other molecules may be included between epo and x and between x and y to provide the proper functionality for coupling or valency .

a method for manufacturing a plastic fuel tank including : a ) inserting a plastic parison including two distinct parts into an open two - cavity mold ; b ) inserting a core , bearing at least part of a reinforcing element configured to create a link between the two parison parts , inside the parison ; c ) pressing the parison firmly against the mold cavities , for example by blowing through the core and / or creating suction behind the cavities ; d ) fixing the part of the reinforcing element to at least one of the parison parts using the core ; e ) withdrawing the core ; f ) closing the mold , bringing its two cavities together to grip the two parison parts around their periphery to weld them together ; g ) injecting a pressurized fluid into the mold and / or creating a vacuum behind the mold cavities to press the parison firmly against the mold cavities ; and h ) opening the mold and extracting the tank .

a multi stage process for the separation of bio - components from grease trap waste and animal waste materials is disclosed . targeted polymers are added to the source and separated streams prior to passing the streams through separation equipment including a rotary screen , one or more presses , a dissolved air floatation device and a clarifier in which the waste stream is separated into a stream containing predominantly oil , grease and protein , a stream containing predominantly water and a stream that predominantly contains fibers .

a method and apparatus for forming a fiber preform for use in molding fiber - reinforced , plastic articles is disclosed . the apparatus includes a perforated form which is rotated about its longitudinal axis while a vacuum is applied internally . cutters deposit short lengths of fibers on the rotating form by traversing the form from one end to another , and a binder resin is sprayed onto the fibers as they are deposited . the form is cylindrical and at least a major portion of its sidewall is initially covered with a flexible bellows . as the cutters traverse the form , the bellows is collapsed ahead of the cutters to incrementally expose the perforations . an oven is provided to cure the resin while the preform remains on the form .

methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions . also , amphipathic polydimethylsiloxane - pvp block copolymers , such as and acrylated and acrylamide - functionalized polyvinylpyrrolidone compounds , such as the block copolymers are useful as biomaterial components in biomedical devices . they provide improved wettability , lubricity , and material compatibility to the biomedical device , e . g ., ophthalmic lenses .

a method of making a multiple - layer article having a surface application material effectively bonded to an injection molded plastic member is provided along with a method for making same . at least a portion of an intermediary substratum is located inside a mold cavity during injection of a plastic injection material where the plastic injection material contacts and becomes partially absorbed into a first side of the intermediary substratum . the plastic member and the intermediary substratum are then removed from the mold cavity , and the surface application material is applied to a second side of the intermediary substratum where the surface application material becomes partially absorbed into the second side of the intermediary substratum .

a process and apparatus is provided for explosively forming plastic objects from shredded plastic such as recycled plastic having different compositions . the shredded plastic and an explosive gas mixture is introduced into a mold cavity having the shape of the object to be formed , and the gas mixture is ignited , generating sufficient heat and pressure to force the plastic to conform to the shape of the mold cavity . the temperature and pressure in the mold cavity is controlled during the explosion by releasing combustion gases from the mold cavity .

a thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins . the machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel . this transport step does not shear the source material , nor does it use friction to produce the heat necessary to melt the source material . the material becomes substantially liquid or melted during the heating process , and the melted material is forced , by the auger screw , into a chamber whereupon a plunger , situated concentrically with the auger screw , injects the material from the chamber into a mold . sensors located along the barrel and in the chamber ensure consistency between mold cycles . the controller dynamically adjusts the injection molding process to achieve more consistent and reliable molded parts .

a bellows shaped compression spring having a variable spring rate and formed of an elastomer having tensile characteristics such that the ratio of plastic strain to elastic strain is greater than 1 . 5 to 1 , said spring being particularly adapted for use in the strut assemblies of light weight , low profile automobiles for minimizing noise , vibration and impact forces otherwise transmitted from the wheel to the vehicle body .

an organometallic polymer having the following moiety : ## str1 ## is disclosed . r 1 and r 2 are independently selected from the group of h , alkyl having 30 or fewer carbons , alkenyl having 30 or fewer carbons , and aromatic having one to ten rings ; n = 0 - 30 ; p = 0 - 30 ; and m is a metal selected from the group consisting of sn , ge , pb , hg , ni , pd , pt , cr , fe , co , cu , and zn . most preferably , m is sn , r 1 and r 2 are n - butyl , n is 3 , and p is 3 . a preferred antibacterial / antifungal composition may be formed by combining the polymer with a suitable carrier .

a multi - layer sheet suitable as sealable or peelable sheet specially used for closing foodstuff containers or blisters . this multi - layer sheet comprises a tie - layer between a substrate layer and a seal or a peel - seal layer comprising a polyolefin with acid or anhydride , grafted or copolymerized . the tie - layer has a thickness equivalent to 1 - 7 g / m 2 . the seal layer comprises a polyolefin . the total thickness of the combination of tie - layer and seal layer is equivalent to 3 - 20 g / m . this multilayer sheet is prepared by extrusion or coextrusion coating .

a process for forming a composite structure includes the steps of : providing a preform having a plurality of layers ; applying a tackifier to each of the layers of the preform ; and infusing the preform with a resin . the tackifier may be catalyzed or uncatalyzed , thermoset or thermoplastic resin . the tackifier has a strain capability greater than the strain of the resin which infuses the preform .

disclosed is a composition and method for providing antimicrobial protection to plastic structures , such as plastic decking , planking , fencing , and panels . the method comprises applying a water - soluble biocide to the metal - containing structure , and converting the soluble biocide to a water - insoluble metal biocide salt that is adsorbed on the surface of , or into the porous structure of the plastic material . the slow release of the insoluble antimicrobial agent from the surface or from within the pores of said plastic structure provides antimicrobial protection for the plastic structure .

a device for obtaining a glazing surrounded , on at least a portion of its periphery , by cast plastic including an injection head , a cavity , an injection dam and at least one mold part in the wall of which a duct is provided . the duct has two parts , one part located outside the joint plane and one part located in the joint plane .

a thermoplastic endless belt has a smooth outer surface substantially free of discontinuities and an inner surface with a plurality of teeth at a given belt pitch . the teeth are adapted to engage a pulley with circumferentially spaced sheaves at a pulley pitch greater than the belt pitch . the belt is slightly stretchable so that the pulley can drive the endless belt when engaging the teeth within a range of load on the belt . means are provided to minimize friction between the belt and the drive pulley . also , a position limiter ensures that the driven tooth stays engaged optimally with the drive sheave .

an insert - molded suture anchor has a biodegradable polymer body molded around a loop of suture . a tapered end disposed on the proximal end of the body is received into a recess in the distal end of a hand driver . anchoring ribs are formed along the remaining length of the anchor . the suture is held securely within the anchor body during the insert molding process . the anchor is produced by placing the suture within an injection mold , and injecting biodegradable polymer into the mold . using a preferred plication driver , the suture anchor can be utilized for capsular plication procedures .

the present invention is a preparation method of an anti - bacterial coating on a plastic surface . a preparation method of an anti - bacterial coating on a plastic surface with a better anti - bacterial effect is provided and comprises putting a plastic substrate into a pvd vacuum device ; coating an anti - bacterial metallic layer on the plastic surface ; and spray coating an anti - bacterial middle coating on the sample coated with anti - bacterial metallic coating . utilizing pvd to coat antibacterial layer offsets timeliness of bacterial activity of the organic anti - bacterial coating , which allows the products with double bacterial layers have excellent anti - bacterial and bacteria - inhibited effects during their life spans . the anti - bacterial effect can not only be lasted for a long time , but also achieve high anti - bacterial efficiency . the product has excellent function and superior appearance , which is suitable for bath products , electronic devices , domestic appliances , cars and other industries .

the invention relates biosensor comprising a conductive or semi - conductive support and an intercalator polymer , wherein the intercalator polymer comprises monomer units of formula wherein p is an electropolymerizable moiety selected among the group consisting in pyrrole , acetylene , phenol , aniline , thiophene , carbazole and azulene ; sp is a spacer , and im is an intercalator . the invention also relates to a method for the detection of a dna sequence with the biosensor , comprising the steps of : hybridizing the dna sequence with a dna probe for forming a dsdna incubating the biosensor with the dsdna for anchoring the dsdna to the intercalator detecting the quantity of dsdna on the biosensor .

this invention provides a process for preparing novel hydrophobically associating terpolymers containing cationic functionality which are useful for clean - up of waste waters containing organic contaminants . these water soluble polymers contain both water soluble and water insoluble monomers . the water soluble monomers are acrylamide and a salt of an unsaturated amine base and the water insoluble monomer is a higher alkylacrylamide or alkylacrylate . these polymers are referred to as cram . the process for their preparation relies on solubilizing the water insoluble monomer into an aqueous micellar solution containing one or more surfactants and the water soluble monomers . the surfactants are specifically selected to enable homogeneous dispersion of the hydrophobic monomer in the presence of cationic monomers , such as 3 - methacrylamidopropyltrimethylammonium chloride , 2 - methylacrylatoethyltrimethylammonium chloride , or diallyl dimethylammonium chloride . redox or free radical initiators are used to copolymerize both the water soluble and water insoluble monomers forming terpolymers of ethylenically unsaturated amine base salts , alkylacrylamides or alkylacrylates and acrylamide . these polymers provide exceptional clean - up of waste waters containing organic contaminants . also , they are very effective for resolving oil - in - water emulsions , such as those found in oil production .

the present invention provides pharmaceutical compositions in the form of relatively high molecular weight biocompatible polymers such as polyethylene glycol , optionally supplemented with a protective polymer such as dextran and / or essential pathogen nutrients such as l - glutamine . also provided are methods for preventing or treating gut - derived sepsis attributable to intestinal pathogens such as pseudomonas aeruginosa by administering high molecular weight polyethylene glycol as well as methods for monitoring the administration of high molecular weight polyethylene glycol , such as in methods of preventing , ameliorating or treating microbe - induced epithelial disorders , as exemplified by gut - derived sepsis . frequently , gut - derived sepsis arises as a complication in mammals recovering from surgical intervention or suffering from a disease or disorder , providing indications of suitable animals to receive preventative treatment . finally , the invention provides a composition comprising infant formula and polyethylene glycol and methods for using that composition .

peg and related polymer derivatives having weak , hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs , including proteins , enzymes , small molecules , and others . these derivatives provide a sufficient circulation period for a drug - peg conjugate and then for hydrolytic breakdown of the conjugate and release of the bound molecule . in some cases , drugs that previously had reduced activity when permanently coupled to peg can have therapeutically suitable activity when coupled to a degradable peg in accordance with the invention . the peg of the invention can be used to impart water solubility , size , slow rate of kidney clearance , and reduced immunogenicity to the conjugate . controlled hydrolytic release of the bound molecule in the aqueous environment can then enhance the drug delivery system .

use of a pharmaceutical composition for the local treatment or prevention of a tissue infection at an infection site , the pharmaceutical composition comprising at least two different antibiotics of group a or pharmaceutically acceptable derivatives thereof , or an antibiotic of group a and at least one antibiotic of group b or pharmaceutically acceptable derivatives thereof . group a comprises primarily intracellular active antibiotics working as inhibitor of bacterial rna polymerase ; as inhibitor of gyrase ; or as inhibitor of bacterial protein synthesis . group b comprises primarily extracellular active antibiotics working as inhibitor of bacterial cell wall synthesis ; or inhibitor of bacterial protein synthesis ; or by direct destabilisation or rupture of the bacterial cell wall .

the present invention provides an improved , leak proof , air tight , cost - effective , plastic liquid specimen container device and methods of use , comprised of a container , a lid , a lid groove containing a gasket therein that is configured to cover and tighten over the rim of the container , a lid flange , and a thin hook in the container containing a second gasket that is compressed by the lid flange when the lid is closed over the container . the improved container device of the present invention thus provides two , independent , internal seals that protect the liquid contents therein for extended periods of time , even if the plastic undergoes deformation , during transport , especially air transport , and under varying temperature and atmospheric pressure .

the leaching of metals from waste rock is retarded by coating the waste rock with a polymer that both adheres to the rock and chemically binds with the leaching metals . in some cases , the ph of the waste rock environment must be increased prior to polymer treatment with an addition of a neutralizing agent such as lime . specifically , this neutralizing agent raises the ph of the waste rock environment thereby allowing the polymer to hold this neutralizing agent within the waste rock .

methods are disclosed for making a base of a spa apparatus to resemble artificial rocks and wood . in one embodiment , the method is comprised of the following steps : making a mold in which its inner surface has the shape and surface texture of a rock or wood ; placing a first structure on the inner surface of the mold , the first structure being operative to prevent warping of the base ; spraying polymer on the mold ; allowing the polymer to harden ; and removing the hardened polymer from the mold , the hardened polymer having substantially the shape and surface texture of rock or wood .

there is provided a laser - writable molding material containing a ) at least one polymer material or at least one precursor compound which can be polymerised to give a polymer material , and b ) a particulate salt - like compound or a mixture of particulate salt - like compounds , which under the influence of laser light changes its color or leads to a color change in the component a ). in order to enlarge the range of matrix materials hitherto available for laser writing and to overcome the disadvantages of the previously used writing procedures for such matrix materials , the laser - writable molding material according to the invention is characterised in that the at least one polymer material of the component a ) is selected from polymer compounds having siloxane crosslinking units .

applicant has proposed a combination of the subretinal and epiretinal methods by placing the electronics external to the eye , entering the eye through the pars plana and the piercing the retina from inside the eye to stimulate subreintally . the present invention is an improved electrode array for subretinal stimulation . a hard polymer such as polyimide is biocompatible and strong for supporting an electrode array and supporting traces in a thin flex circuit array . in the present invention applicant takes advantage of the sharp nature of thin polyimide making a point on the end of the electrode array . this allows the flexible circuit electrode array to be both electrode array and surgical tool to cut the retinal and slide the array under the retina in a single action .

a carboxylated latex is added to an aqueous slurry of fibers to remove metal ions contained in solution . the water is removed to form a felt . the demetallized water removed during felt formation is recycled in a closed process water system . the carboxylated latex is formed by polymerizing an unsaturated carboxylic acid on a substantially surfactant free styrene - diene polymer latex .

a container and complementary sealing lid both of which are of plastic , in which the container has a sealing bond on its wall around its upper peripheral edge of two different radii , the larger one on the outside , and the lid has a u - shaped peripheral sealing channel with inner and outer side walls and an upper wall joining the side walls . the inner surface of the upper wall is formed with areas of two different radii with the larger on the inner surface of the channel outer side wall and the container sealing bead and lid sealing channel being sized so that sealing engagement occurs between the bead and channel smaller radii areas and there is a clearance between the other parts of the bead and channel to aid in fastening and removing the lid .

a process for forming a specific length of extruded thermoplastics material trim strip for automobiles includes the step of extruding the strip directly onto an endless carrier belt moving at a speed matching the emergence speed of the extrudate . the extrudate , therefore , is less subject to stresses causing unpredictable length changes on cooling . it is therefore possible to predetermine the cooled , matured , final lengths of strip and to provide moulded end portions on - line .

a pervaporation process for separating organic liquid mixtures of components having differing polarities , uses an ion exchange membrane which comprises a polymerized alkene including pendant groups of formula so 2 n — a — qx where r is h or alkyl , a is alkylene , q is quaternary ammonium , and x is a negatively - charged counter - ion , the sulfur content of the membrane being in the range 3 - 10 wt . %.

a forming web comprises a first extruded polymeric film oriented to substantially the same extent in both the longitudinal and machine directions . alternately , a high molecular weight crystalline polyolefin is blown at least to a blow - up ratio sufficient to orient the film to substantially the same extent in both the longitudinal and machine directions . a second extruded polymeric film including a layer of an oxygen barrier polymeric material may be laminated to the first film .

method for treating a plastic part , which comprises a surface , comprising the steps : a ) irradiating at least a part of the surface with a treatment radiation to obtain a modified surface area , the modified surface area being capable of absorbing a heating radiation to an extent greater than the unmodified surface area , and b ) irradiating the modified surface area with the heating radiation at least in a section so that the plastic part is heated and softened in a region defined by the irradiated section of the modified surface area .

an intracorporeal marker includes a fibrous unitary marker body having bioabsorbable fibers compressed into a compressed configuration , and bound in the compressed configuration by a polymer binding agent . the intracorporeal marker may be incorporated into an intracorporeal marker delivery device having a delivery cannula which has a distal tip , an inner lumen and a discharge opening in communication with the inner lumen . the compression and binding occur prior to insertion of the fibrous unitary marker body into the inner lumen of the delivery cannula . the fibrous unitary marker body is slidably disposed within and pushable through the inner lumen of the elongated delivery cannula proximal to the discharge opening .

a device for passing a biopolymer molecule includes a nanochannel formed between a surface relief structure , a patterned layer forming sidewalls of the nanochannel and a sealing layer formed over the patterned layer to encapsulate the nanochannel . the surface relief structure includes a three - dimensionally rounded surface that reduces a channel dimension of the nanochannel at a portion of nanochannel and gradually increases the dimension along the nanochannel toward an opening position , which is configured to receive a biopolymer .

there is disclosed a reusable shipping pallet formed from plastic parts and a method of assembling the same . the pallet comprises at least two i - beam constructs , each of the i - beam constructs having a first beam end , a second beam end and a longitudinal beam axis extending therethrough , each of the i - beam constructs having a top beam portion and a bottom beam portion , and each of the i - beam constructs having a dovetail projection along the top beam portion and extending in a direction parallel to the longitudinal beam axis ; and at least one deck board having a first board end , a second board end and a longitudinal board axis extending therethrough , the at least one deck board having a top board portion and a bottom board portion , the at least one deck board having at least two dovetail slots formed in the bottom board portion , the dovetail slots being substantially perpendicular to the longitudinal board axis and being configured to compliment a shape of the dovetail projection ; wherein the pallet is assembled by inserting each of the dovetail projections into a corresponding dovetail slot of the at least one deck board .

this invention provides a process of making a stable aqueous dispersion including concentrated , finely divided particles of a water insoluble biocide active , which comprises grinding the biocide in water in the presence of a non - ionic polymeric dispersant and optionally a co - dispersant , and compositions prepared by this process .

a process for manufacturing fiber boards and similar wood - based products from a lignocellulosic raw material having a moisture content of at least 10 wt -%. according to the process , an aqueous fraction is separated from the fibers of the raw material , which fraction later is recycled to the process in order to form at least a part of the agent used for binding the fibers . before mixing with the fibers , the aqueous effluent is concentrated and enzymatically oxidized in the presence of oxygen in order to polymerize the solubilized wood material and in order to increase its concentration . lignin can be added to the water solubilized wood material or the solubilized wood material can be added to the fibers together with another binder . eventually , the mixture is formed into a board and hardened .

offset opening tabs for zippered plastic bags and a variety of disposable and reusable containers which make opening a container fast and easy , as well as solving the difficulties experienced by diverse types of users who have functional or situational finger dexterity limitations or compromised vision that make opening packages a cumbersome or frustrating event .

the present invention describes the preparation of unimolecular polymeric micelles that bear a hydrophilic shell and a potentially ionizable and relatively hydrophobic core at a determined ph value . the core becomes electrostatically charged as the ph is changed . such micelles can be made from either biodegradable or non - biodegradable polymers . loaded drugs can be physically retained in the micelles when the ph of the surrounding medium favors interactions with the core . upon a change in ph , modification in the ionization state of the core will decrease the interactions between the drug and the inner core and facilitate the release of the micellar contents .

a system and process for removing contaminants from wastewater where the wastewater is treated into a cleaned water that can be reused or discharged into the environment . the wastewater is transported through purification sections , depending on the system including several of the following : pre - treatment via screening and weirs to remove debris and certain heavy solids ; a second pretreatment via a sump ; strainer ; conductivity solution injection system and electrolytic coagulation system ; polymer injection system ; inline mixers for mixing the polymer in the wastewater stream ; retention tubes for providing residence time for the polymer to react in the wastewater stream ; a multi - stage separation system comprised of a plurality of water separation compartments for consecutively separating contaminants from the wastewater stream by removing contaminants that float and heavy contaminants that settle to the bottom ; and an ozone treatment system . except for the pretreatment sections , each of the treatment sections are contained within an enclosure cabinet that includes controller and control panels as well and feed containers for the conductivity fluid and polymer .

the invention is a method of producing dispersions of aqueous globules in an aqueous medium . the aqueous phases are rendered insoluble or immiscible in one another by the presence in separate phases of colloidal ionic reactants , preferably macromolecular polyelectrolytes , which are opposite in charge . the dispersed globules are larger than colloidal dimensions , and may be as large as one - half inch or more in length . if desired , they can be separated from the continuous medium and dried as discrete particles . when one or more of the aqueous phases are different in color , the compositions are useful in producing multicolor coatings , ceramic glazes , and fibrous webs . the dispersion is unique in that each of the dispersed globules possesses such plasticity and coherence that it may be subjected to substantial shear without subdividing . the dispersion when the globules are colored may be applied to a desired surface to impart either a first or second decorative appearance thereto . the first decorative appearance is attained when some of the globules are colored differently from others , and the suspending medium is substantially clear or translucent . on application of the dispersion to a surface , due to the resilience and cohesiveness of the material defining the globules , the globules appear in a uniform spaced relationship and assume a configuration which is relatively independent of the method of application . the second decorative appearance is attained when both the globules and suspending medium are colored and different in color from one another . the pattern obtained by application is then variable in accordance with the method of deposition . when the dispersion is applied by brush or roller , inherent small variations in film thickness result in different flow patterns of globules and suspending medium , imparting a striated or mottled decorative appearance to the surface corresponding to the directional shear or geometrical configuration of the application tool .

the invention relates to a method and a device for blow - moulding containers from preforms which are previously heated in the region of a heating section and consist of a thermoplastic material . the preforms are transferred to a blowing device following the heating thereof , in which they are shaped to form containers by the application of a blowing pressure inside blow moulds . said blow moulds respectively consist of at least two blow mould segments . the preforms are transported together with the blow moulds at least along part of a peripheral path of a rotating blow wheel . a separating plane of the blow mould segments is positioned at least in an opened state of the blow station in a rotational direction of the blow wheel , facing forwards , with an angle of inclination in relation to the radial direction of the blow wheel . the blow station is positioned at least in two parts during a transfer process .

a method of solid phase peptide synthesis and a reusable insoluble polymer resin having functional groups of the formula resin -- nhrnhco . sub . n oh wherein r is an branched or straight chain alkyl or cycloalkyl group having 2 to 20 carbon atoms , an aromatic group , substituted aromatic group , heterocyclic group or substituted heterocyclic group preferably 1 , 4 - dimethylcyclohexane , and n is an integer , preferably 3 . phosphorylation followed by reaction with a diol , preferably 1 , 4 - bisbenzene , affords a substrate upon which peptides may be synthesized by repeated deprotection and coupling with protected amino acids .

a sustained release drug formulation including : a drug ; a biodegradable polymer which is insoluble in water ; and an oil vehicle in which both the drug and the polymer are dissolved . the oil vehicle contains 10 - 100 % by volume a pharmaceutically acceptable oil and 0 - 90 % by volume a pharmaceutically acceptable liquid carrier for the drug or the polymer .

there are a number of devices for washing / recycling thermoplastic . however , the devices tend to be designed on a scale for use at a central site . additionally , the devices currently available do not have a positive feed travel mechanism . rather the devices permit the thermoplastic to be &# 34 ; pushed &# 34 ; through at a rate dependent on the feed rate . the present invention provides a compact washer / recycler having a positive feed travel which is designed to shred , wash , dry and compact plastic at the location of its use .

a parison ejector is used in combination with an injection molding apparatus of the type for molding parisons having an injector portion including a plurality of mold cavities communicating with a source of molten plastic material , an ejector portion for engaging the injector portion which includes a movable platen , a plurality of cores shaped and positioned to matingly engage the mold cavities , and an ejector frame which is carried by the movable platen and supports the cores . the parison ejector includes a hydraulic ram which actuates an ejector carriage which carries a pair of jaws pivotally mounted on the carriage and having mating ends which meet to form bearing surfaces which receive cams mounted in the ejector frame . the ends of the jaws form a portion of the mold and the parison is partly formed within it . reciprocal movement of the ejector carriage with respect to the ejector frame causes the bearing race to move relative to the stationary cam thereby forcing the jaws apart so that the molded parison is removed from the end of the core . the cores preferably are hollow and include a helical pathway for a coolant to flow therethrough .

a spindle or worm drive for adjustment devices in motor vehicles . the device is secured with a fixed spindle or a fixed toothed rack to the first of two parts which can be adjusted in relation to each other , and is provided with a gear mechanism which is connected to the second of the two parts which can be adjusted in relation to each other . the gear housing is free from backlash and is enclosed by at least one bearing shell such that it is pivotable about at least one axis . the bearing shell consisting of two bearing plates which fit into one another and which can be joined to each other after enclosure of the gear housing . the gear housing is made of plastic and is provided with a concave or convex housing part which is surrounded by a convex or concave bearing shell section made of a material which is suitable for receiving crash forces , especially a metal material .

the invention relates to modified antibiotic peptides , in particular derivatives of apidaecin and oncocin , preferably having increased stability , reduced immunoreaction , and improved pharmacokinetics . in the invention , the peptide antibiotics are reversibly protected by means of a linker having the polymer polyethylene glycol . the peptide linker contains a recognition sequence for trypsin - like serum proteases . in the apidaecin derivatives , the linker and the peg are bonded to a side chain . in the serum , the linker is cut by serum proteases and peg is separated off . the released peptide still contains remnants of the linker , which are still bonded to the amino group in the side chain . astonishingly , said remaining remnants of the linker impair the activity of the antimicrobial peptide only a little or not at all .

a solid waste pollution control process for the dry recovery and restoration of 100 % recycled paper pulp , machine cleaned confetti thrashed paper , fibrous fuels , plastic materials and construction aggregates from &# 34 ; solid municipal refuse &# 34 ;, consisting of municipal household garbage , household yard trash , and commercial trash from supermarkets and retail establishments , condominiums , apartments , offices and warehouses . the solid municipal refuse is automatic machine sorted , machine chopped and thrashed and machine and air cleaned and is subjected to specific gravity and ballistics separation to recover the confetti thrashed paper while eliminating and rejecting from this confetti thrashed paper the loose , soft , decayed , wet and extraneous matter including high density particles and abrasive materials , such as metal particles , grit and glass such that this extraneous matter and materials are separated into fibrous fuels and construction aggregates . the machine cleaned confetti thrashed paper is then digested into fiber pulp from which plastic is removed , and it may be used as wet fiber pulp or alternatively may be air dried and separated into residual plastics and 100 % recycled paper pulp suitable for use in making various commercial paper products .

protein phosphorylation is a major post - translational modification and it plays a pivotal role in numerous cellular functions . we present a composition that includes a soluble nanopolymer core functionalized with groups having an affinity for either metal ion or metal oxides which can be used for phosphopeptide enrichment . exemplary compounds including polymac - zr , polymac - fe and polymac - ti demonstrate outstanding reproducibility , exceptional sensitivity , fast chelation time , and high phosphopeptide recovery from standard mixtures that include phosphorylated peptides . the composition can be used for phosphoproteome isolation from samples of medicinal , diagnostic or biological interest such as malignant breast cancer cells . such compositions were used for the quantitative analysis of the changes in the tyrosine phosphoproteome in highly invasive breast cancer cells after induction of syk kinase , a potent suppressor of tumor growth and metastasis . the composition and method disclosed herein offers an efficient and widely applicable tool for phosphoproteomics .

a composition of matter comprising sophorolipids as antimicrobial agents , antifungal agents , biopesticides , for uses as drugs to treat hiv , septic shock , cancer , asthma , dermatological conditions , as spermicidal agents , as anti - inflammatory drugs , as ingredients in cosmetics and building blocks for monomers and polymers and self - assembled templates for further chemical elaboration .

disclosed is nanocoupling of a polymer onto a surface of a metal substrate for improving coating adhesion of the polymer on the metal substrate , and in vivo stability and durability of the polymer . in accordance with the present invention , the polymers can be grafted via a chemical bonding on the surface of the metal substrate by the nanocoupling , by which adhesion , biocompatibility and durability of a polymer - coated layer which is to be formed later on the metal substrate were remarkably improved ; therefore , the nanocoupling according to the present invention can be applied to surface modification of a metal implant , such as stents , mechanical valves , and an articular , a spinal , a dental and an orthopedic implants .

a center heated die plate for an underwater pelletizer radiates heat outwardly to the extrusion orifices and die faces of the die plate thereby maintaining the die plate and extrusion orifices at an elevated temperature to obtain optimum flow of molten polymer through the extrusion orifices . in one embodiment , a cylindrical heating coil is placed in a hollow central core of the die plate and a plurality of peripheral heating elements are inserted in radial recesses distributed around an outer perimeter of the die plate to create an inner heat zone and an outer heat zone which are separately controllable .

a disclosure relates to an apparatus for extruding and forming blanks from a rubber or polymeric material comprising a pair of hydraulic ram operated extruders having outlets connected to a common delivery conduit . a screw extruder is also connected to the conduit and a control valve controls flow between the respective extruders and conduit such that in one position of the valve one of the ram operated extruders is connected to the conduit outlet delivery of extrudate and the other extruder is connected to the screw extruder to receive a fresh charge of extrudate . a closed hydraulic circuit links the hydraulic rams of the two ram extruders whereby filling of one of the extruders causes that ram to retract and pump the hydraulic fluid therefrom to the other extruder to cause that ram to extend and thereby discharge the extrudate therein and vice versa . by feeding extrudate from the screw extruder , the hydraulic ram extruder being charged is caused to receive extrudate and the ram extruder discharging extrudate is caused to discharge extrudate . a cutter mechanism is provided at the outlet of the conduit severing the extrudate repeatedly at a rate determined by the advance / retraction of one of the hydraulic ram extruders to form blanks of substantially equal volume .

articles of manufacture such as building materials are formed from recycled waste polymeric material including 15 to 50 percent aliphatic polyamide material . the articles are formed by chopping and granulating the waste polymeric material into fragments and extruding them at a temperature that is lower than the lowest melting point of the aliphatic polyamide material .

a coffee cup and container for a beverage concentrate comprises an expendible cup and a plastic film liner therefor positioning the beverage concentrate between the liner and the cup bottom . the liner overlaps the rim of the cup and is attached thereto so as to form a convenient easily handled section enabling the liner to be removed when the beverage concentrate is to be used as by adding water thereto .

an apparatus for compacting objects such as plastic bottles and cans whose material is to be recycled includes a detector device , two discharge openings and a compactor device . the detector device has at least one code reader for distinguishing approved from rejected objects . one of the two discharge openings is intended for approved objects and the other for rejected objects . the compactor device compacts the approved objects and has continuous , non - cyclic operation . as a result , waiting times are avoided between the discharge of an approved object and the commencement of the compaction thereof .

in a method of contrast mr imaging , using parenterally administered contrast agents , the improvement comprising using as the contrast agent , e . g . to achieve a negative contrast effect , composite particles comprising a biotolerable , carbohydrate or carbohydrate derivative , preferably polymeric , matrix material containing magnetically responsive particles , eg . of magnetite .

a composite material that is formed into basic structural panels that can be subsequently assembled into the floors , walls , roof trusses , and roofs of buildings by unskilled labor having access to basic tools is disclosed . thus , basic shelter , low - cost houses and various other structures , such as schools , churches , clinics , and storage facilities may be constructed to address the need for such structures in economically - distressed countries with large populations . the building material for the panels is a molded polymer composite , made from either homogeneous or non - homogeneous materials . the materials consist primarily of recycled or virgin polyolefins , primarily polyethylene and polypropylene compounds with or without various additives , including glass fiber , metals and naturally - occurring materials such as rice husks , sugar cane bagasse , nut shells , talc , clay , sand and wood . conduits and channels for electrical wiring , plumbing and ventilation may be provided and a cross - ribbed reinforcement grid may be included for strength . vertical or horizontal rods and other strengthening materials , including fabrics may also be placed to run through the available channels formed in the composite material to enhance structural stability . each structural panel may be provided with flanges at their edges in which there are holes that align with holes on other structural panels for fastening the structural panels together using various devices . sealants , adhesives and flashing may be applied to the interfaces between the structural panels .

a rotatable perforated molding element for embossing and / or perforating thermoplastic sheet or film , the molding element including a series of perforated strips having two parallel sides and two parallel ends , the sides being perpendicular to the ends , each of the strips being welded at the end prior to placing the strips on a supporting drum . additional strips are placed on the drum until the desired area of the drum is covered with the strips .

a sanitary pump and sanitary valve is provided employing a dual action piston for providing a constant pressure metering and delivery of fluids utilizing a drive shaft positively driven and controlled by a drive motor for sanitary applications . the novel sanitary pump may be fabricated from stainless steel , glass , plastic or other materials which do not include surface imperfections that would allow the growth of bacteria or allow the contamination of foods , medicines and other products that may be precisely metered by the novel sanitary pump . the novel sanitary pump includes novel sanitary check valves for opening and closing a high speed dependably and reliably and cycles up to 200 cycles per minute and preferably in the range of 60 to 160 cycles per minute by providing guides for maintaining check valve stem stability . the novel sanitary pump further include compression seals for sealing the drive piston to maintain high reliability and dependability in high speed constant pressure applications .

a highly improved elastomeric composition , process , and articles made thef , wherein the novel composition is characterized by greatly increased wear longevity , thermomechanical stability , highly improved tear and tensile strength at high temperature usage , in addition to high resistance to burning in open flame , as well as high resistance to cutting , chipping , cracking and crack propagation particularly in product use for tank track pads and other related track system elastomeric component products ; wherein the improved composition is a unique combination of its respective polymer , filler , curing and antidegradant system , in which the polymer system either consists of about 100 parts by weight of highly saturated nitrile polymer or of various novel blends of the highly saturated usually in majority amounts together with minority amounts of carboxylated nitrile , with or without additional minority or near equal parts of nitrile rubber ; and wherein the curing system may include various blends of from between about 1 . 5 to about 30 parts by weight of a metallic oxide , along with from between about 25 to about 50 parts by weight of a metallic methyl - methacrylate resin , together with from about 0 . 25 to about 3 parts by weight of a curative compound ; which composition is further well suited for manufacture of various abutment and motion stop or limit members subjectable to repetitive engagement by moving mechanisms , and for various at least semi - flexible baffle or skirt - like members useable with various air cushion type vehicles or the like .

a tumbler for consumption of beverage and food is prepared by removing the metal top from a standard aluminum can and fitting a thin plastic sleeve over the exterior side walls thereof . said tumbler is reuseable , extremely strong and unbreakable , and has a glass - like feel . the can is easily replaced by slipping it out of the plastic sleeve and inserting a new can therein . the invention unexpectedly permits the reuse of empty , discarded aluminum cans but still allows recycling of the cans after being replaced in the plastic sleeve .

an apparatus and method for stiffening an wet extruded ceramic body for improved handling prior to drying and firing . the ceramic body is formed from a plastically deformable material including inorganic raw materials , and organics , such as a binder having a thermal gel point . as the ceramic body log exits the extruder die it is passed through a microwave energy field to be heated to above the gelling point of the organic binder . the ceramic body then stiffens and can be easily handled without deformation .

a process for preparing a composite hollow body article by means of injection molding is disclosed . the process includes the steps of : providing a hollow body having exterior surfaces and interior surfaces , the interior surfaces of the hollow body defining a hollow interior , the hollow body also having at least one opening which provides fluid communication with the hollow interior thereof , introducing a substantially incompressible fluid into the hollow interior of the hollow body , the hollow interior being substantially filled with the substantially incompressible fluid ; and injection molding thermoplastic material onto at least a portion of the exterior surfaces of the hollow body .

ovens for preforms in plastic material , applicable in particular but not exclusively to blowing machines and stretch blowing machines , are provided .

the neck opening of a filled plastic bottle is sealed by a sealing unit ultrasonically welded to the top of the neck . the sealing unit can be a one - piece member having an upwardly projecting hollow portion arranged to be broken off to provide an opening for dispensing the contents of the bottle . alternatively , the sealing unit can be composed of an inner cap , an outer cap and a sealing disc interposed between the caps , this unit being arranged to be pierced by a cannula for withdrawing the contents of the bottle .

metal , fiber or plastic panels are fabricated by the attachment of planar imperforate and / or partially perforated outer sheets to a specially formed center member comprising a web or sheet having a deformed surface defining an array of adjacent triangular projections and depressions . the center member is produced by the longitudinal cutting and folding of the web as it passes between two forming cylinders which mesh with one another , the cylinder peripheries carrying complementary arrays of spaced triangular - shaped tooth elements having their base lines aligned in the opposing cylinders , to shear and thereby relieve the passing web laterally so as to produce intermittent parallel cuts and angular folds in the web while gathering the web longitudinally thereby to form triangular , flat - topped cells in the center member . instead of using two outer sheets , the formed center member can be used per se , e . g ., as a packing medium , or it can be combined with only one outer sheet to form a single - face product .

an improved blow molded plastic non - round container having rectangular sidewalls is adapted for hot - fill applications . the hot - fill container has vacuum panel reinforcement panels with rib structures located in a label mounting area on the sidewalls . in each panel , the ribs extend across the panel and are parallel to each other where the edge of one rib faces in each array faces inward and the others in the array face outward . the inward rib resists the bulge of the panel and improves bumper denting , ease of manufacture and light weigh capability .

a method and apparatus for electrocution and disposal of pests , the apparatus including a reusable power source and a low cost disposable container . the reusable power source includes batteries and a circuit to provide a high voltage and low current signal to the disposable container , to electrocute small pests without presenting a risk to humans or pets . the disposable container is constructed from low cost material , for example , cardboard or plastic , and in one embodiment may be nested for efficient retail packaging . the nesting may be accomplished using tapered disposable containers or a series of decreasing size containers . a container floor includes conducting surfaces formed or glued on the floor . internal leads and connector surfaces are similarly formed on sides and a rear of the container . the connector surfaces are configured to connect to the power source .

an expandable media filter structure is composed largely of biodegradable materials and is environmentally disposable . a plurality of pleated panels are interconnected at their edges so as to be collapsible for storage and shipping purposes but expandable for installation and use . a plurality of ribbons are ultrasonically welded to each of the panel edges , with the ribbon portions between edges being of substantially equal lengths , thereby maintaining equal spacing between the panel edges when the filter is in the expanded condition but allowing an easy collapsing of the filter for storage . forming a part of the disposable filter are pair of end plates , with each being adhesively attached to an end panel and having a pair of slots formed near their ends for attachment to a nondisposable support structure . the end panels are formed of multiple layers of paperboard which are adhesively bonded and compressed into a u - shaped structure that rigidly supports the filter in its expanded condition . the nondisposable support structure comprises a pair of molded plastic side caps that fit over the respective ends of the filter panels and the end plates . each side cap has a pair of flanges at its opposite ends which act to maintain the filter in its expanded condition when the end plates are placed in abutting position therewith . each side cap also includes a boss which fits into a respective end plate slot to hold the end plates in their installed positions within the side caps .

a collapsible rotary blister sealer with improved heating plate assembly is disclosed . the disclosed blister sealer comprises a lightweight , tubular frame , detachable legs and a lightweight , modular turntable . further disclosed is a sealer that is mountable on a table - top or other horizontal surface . said disclosed turntable is height - adjustable ; easily removable , and further includes an indexing means for stopping said turntable at predetermined angular positions . the disclosed press of the present blister sealer may be height - and pressure - adjustable , and said frame may further include a strut to further strengthen said frame when greater pressures are desired from said press . it is further disclosed that said sealer include a unique heater plate assembly that permits easy access to the heating coils and further may include a protective sheath to prevent damage to said heater plate assembly . still further disclosed is a protective guard to protect the user from the heater plate assembly by a guard comprising a metal top and three plastic side panels that are easily replaceable . in a further embodiment of the present invention , a rotary collapsible blister sealer that can seal clamshell packages around items is also disclosed .

a real - time system for determining the geographic movements of an individual or object by sampling particulates contained thereon . the system includes particle collection , sample preparations , and sample analysis using three primary modes of detecting certain particulates . the first mode involves the imaging of pollen , spores , or other biological material which are visible through a light microscope when properly stained or prepared . the second mode involves the use of real - time polymerase chain reaction to amplify and detect target nucleic acid sequences . the third mode involves the use of x - ray diffraction to identify mineral particles . the results from any mode , or any combination of modes , are analyzed by comparison to a reference database containing geographic information and the results are compiled by a controller for visual display .

a modular system for forming without tools a variety of 3 - dimensional structures comprises panels , and connectors , and locking bridging members for assembling the panels together in a desired configuration . the panels can be disconnected so that the erected structure can be disassembled with ease for future reuse . the system can be used to erect children &# 39 ; s playhouses made of polymer materials , as well as in a large variety of other applications to create 3 - dimensional objects requiring rapid positive construction without tools .

apparatus with an optical bench and at least one optical element , which is attached on the optical bench , whereby the optical bench comprises a layer structure with an extruded honeycomb plate from light alloy , paper or char - fiber - reinforced plastic . a first cover layer is glued to the honeycomb plate and comprises a first glass - like plate , which is surface - treated on that side which faces away from the honeycomb plate . a second cover layer glued to the lower surface of the light alloy honeycomb plate and comprises a second glass - like plate . the optical bench has suspensions , which glued to one or more parts of the layer structure for force introduction into the layer structure . the optical element is fixed by cold welding or glueing on the surface - treated side of the first glass - like plate .

the process includes placing in a mold a pile of plies taken from a web of fibers embedded in a thermosetting or thermoplastic material , the plies being arranged according to preferred directions of the fibers , and subjecting the mold to particular pressure and temperature conditions . the process also includes carrying out successive operations of shaping the pile of plies in the mold , at low pressure , carried out progressively at low speed ; removing the material in excess protruding out of edge of the mold ; carrying out the tightness of the mold from outside ; increasing the pressure up to high pressure ; raising the temperature of the mold ; and quickly cooling the mold .

a stable xanthan solution with superior filterability and subterranean injectivity characteristics comprising biopolymer and a chelating agent selected from aliphatic alpha - hydroxy acids having from about 2 - 7 carbon atoms ; aliphatic and aromatic beta - keto compounds having from about 4 - 9 carbon atoms ; or 2 - and 4 - pyrones having a hydroxyl group alpha to the carbonyl and having 5 or 6 carbon atoms ; said chelating agent being present in an amount of at least about 1 . 0 ppm of the total solution . a method of enhancing oil recovery comprising employing as a mobility control solution in oil - bearing formations a mixture of xanthan biopolymer and a chelating agent is also disclosed .

a single and dual lensed optical waveguide capable of approximating a desired iqp light profile to produce uniform welding with two overlapping gaussian light profiles that are mirror folded back on themselves . this allows for a resolution of the laser light that comes out of a fiber bundle in a weld width of under 1 / 100 , 000th of an inch . the results are narrow , uniform plastics ttir welds that show no signs of bubbling .

the invention concerns a method for treating a surface for the protection and functionalisation of polymers by gas plasma deposit in a confined chamber of one or several silicon alloy layers . the silicon alloy is selected among silicon and its oxides , nitrides , oxynitrides ; the deposit is performed at a temperature less than the degradation temperature of the polymer , and a physico — chemical surface pre - treatment by plasma is performed in the same chamber before the silicon alloy is deposited ; the pre - treatment consisting in a surface treatment comprising etching a surface zone of the polymer and step which consists in depositing a polymeric carbon compound .

handles for cutting instruments such as scissors are described , each handle being made of a relatively rigid plastics material and being provided in its finger - receiving hole portion with a lining ring of elastically deformable material , such as natural or synthetic rubber . such elastically deformable ring permits the scissors to adapt itself to the fingers of the user , independently of their size or whether the user is right - or left - handed .

a port assembly for use with a polymeric bioreactor bag includes the following components : i ) a hollow port member made from a material which can be fusibly affixed to the wall surface of the bioreactor bag ; ii ) at least one fluorophore spot positioned on the port member ; iii ) a conduit for conveying excitation light from an optical source to the fluorophore , which conduit can be a lens , a curved parabolic collimator , a shaped reflector or a wave guide ; and iv ) a second conduit for conveying fluorescent emission light from the excited fluorophore to a photo - detector , which second conduit although different from the first , can likewise be a lens , a curved parabolic collimator , a shaped reflector or a wave guide .

a three part laminated material for use in making blister packages and a method of making such a material . the material is comprised of a central core layer of poly chloro - tri - fluoro ethylene to each side of which a separate polymer film is adhesively attached . the method of making the material involoves use of a corona treater , a vertical forced air convection dryer , a horizontal convection dryer , a motor driven rewind , a chilled cylinder , a primary unwind and at least one laminating unwind . in the preferred embodiment , each of the polymer films is polyvinyl chloride , although a variety of different films may be used . the disclosed material provides a high moisture barrier , a stable inter - laminar structure and outer surfaces which lend themselves well to bonding with other materials .

the present invention provides a polymer synthesizer having a high efficiency production rate . the synthesis of the polymers , and more particularly of dna and rna , is done very quickly . furthermore , it is possible to synthesize a plurality of polymers in the same batch without significantly increasing the time and the complexity of the process .

the present invention is directed , in general , to an improved material and method of planarizing a surface on a semiconductor wafer and , more specifically , to a method of altering the properties of polymers , preferably thermoplastic foam polymers , used in polishing applications . the chemical and mechanical properties thermoplastic foam substrates can be transformed by inorganic , inorganic - organic , and or organic - organic grafting techniques , such that the polymer foam is endowed with new set of properties that more desirable and suitable for polishing .

there is disclosed a glass based container having at least a portion of its external surface coated after the annealing of the glass with a protective , decorable , water removable , organic polymeric film which can be removed by an aqueous medium such that the annealed glass container base can be recovered , recycled , and reused .

a method of preparing polymeric particles with photographic couplers , such polymeric particles being useful in a microarray , the method comprising the steps of : preparing an organic composition by combining a photographic coupler and a high boiling organic solvent ; preparing a separate aqueous composition comprising polymeric particles with functionally active groups on their surfaces ; combining the organic composition of step with the aqueous composition of step , thereby effecting a loading of said photographic coupler and high boiling organic solvent into said polymeric particles ; and attaching biological probes to the functionally active groups on the surfaces of the loaded polymeric particles of step c ). polymeric particles made by the method is also disclosed .

a container constructed of plastic or like materials is provided which is generally constructed of three separate pieces in a rectangular form . four sides of the container are constructed of a single sheet of plastic which has been folded into a sleeve form while the remaining two surfaces are constructed of formed plastic or the like . the formed pieces snap fit into the sheet plastic portion . the container is ideally made entirely of clear plastic and enjoys the property of being easily assembled . the container cannot be disassembled without applying appropriate external forces ; a substantially greater force is required to disassemble the container than is required to assemble it .